Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d5460a227710b09…

MALICIOUS

PDF

61.6 KB Created: 2020-08-29 15:39:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9e36c26d308845cd694b5483a62d3160 SHA-1: 04201bbb586e6e05d25dbdb7c55f8ecf3d15aab9 SHA-256: 4d5460a227710b09882f6a0ed58d4cb5b38b761a45d1445c20ad93c6a07b2d49
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, identified as a 'PDF_SEO_LINK_FARM' heuristic. One of these links, 'https://ttraff.ru/wix?keyword=rick+joyner+and+todd+bentley', is flagged as a malicious redirector. The presence of a link farm and a malicious redirector strongly suggests an attack pattern aimed at luring users to malicious sites. No scripts were extracted, and the document body was heavily obfuscated, but the link farm and redirector are sufficient indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/wix?keyword=rick+joyner+and+todd+bentley
    • https://static.usrfiles.com/ugd/b8c837_54aff90327a942fe8d998f90f4cc31ad.pdf
    • https://static.usrfiles.com/ugd/b8c837_881cf17a5c4749aba71450fa4b908378.pdf
    • https://static.usrfiles.com/ugd/576447_34eff7ca2b7d45368586c39db3d64567.pdf
    • https://static.usrfiles.com/ugd/b8c837_f8c9c619ac6b45a68c1f246175792e21.pdf
    • https://cdn.shopify.com/s/files/1/0431/6866/1670/files/business_capability_framework.pdf
    • https://cdn.shopify.com/s/files/1/0434/3103/5032/files/bullet_points_gmail_android.pdf
    • https://static.usrfiles.com/ugd/b8c837_778eadfd0cd3492fad1978ab6ba96529.pdf
    • https://static.usrfiles.com/ugd/b8c837_d08d008db0e74e789731485e54fd4dda.pdf
    • https://static.usrfiles.com/ugd/b8c837_b807141955ef4b10b45a1f6f3750c3ad.pdf
    • https://cdn.shopify.com/s/files/1/0435/4713/2068/files/62793523533.pdf
    • https://cdn.shopify.com/s/files/1/0432/4986/0765/files/97789348682.pdf
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/81665890898.pdf
    • https://cdn.shopify.com/s/files/1/0439/4788/4699/files/48568764221.pdf
    • https://cdn.shopify.com/s/files/1/0429/6622/0956/files/how_to_torrent_fl_studio_12.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b44c.bin
0ec8c747dd71fe0221dd91f4208c370940b66e6f6180ec316d98a789fba47fb8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB44C 5144 bytes
font_01_sfnt_off0000c5df.bin
154f153c69687dd1016f926529bab8d3f9088f9e4a7bcd3896bea41ec8bb3e30		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC5DF 10600 bytes

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